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SHACKELFORD SPRABERRY UNIT

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

Max Depth

9,000 ft

First Permit

2004-12-06

Latest Activity

2005-02-08

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2005-07-13

Shut-In

—

Plugged

—

P-5 Org Status: Active

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

PARKER & PARSLEY DEVELOPMENT CO. 1993-1995→ PARKER & PARSLEY DEVELOPMENT L.P 1995-1997→ PIONEER NATURAL RES. USA, INC. 1997-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil

production & DCA →

Formation Tops (4) Elevation 2,715 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
TOP UPPER SPRABERRY (Spraberry)	7,208 ft	-4,493 ft
TOP LOWER SPRABERRY (Spraberry)	7,772 ft	-5,057 ft
TOP DEAN (Dean)	8,504 ft	-5,789 ft
BASE DEAN (Dean)	8,776 ft	-6,061 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (2)

Interval	Type
7,915–8,144 ft	Perforated
8,659–8,853 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	396 ft	250 sx
4.5"	8,985 ft	660 sx

Permit History (2)

#554336 Drill Final Completion

SHACKELFORD SPRABERRY UNIT · 9,000 ft

2005-02-08

Spud 2005-05-22

#554336 Drill

SHACKELFORD SPRABERRY UNIT · 9,000 ft

2004-12-06

Applications (2)

#554336 A PIONEER NATURAL RES. USA, INC.

received 2005-02-03

#554336 A PIONEER NATURAL RES. USA, INC.

received 2004-12-02

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2005-08-10 log on file

W-2/G-1 2006-01-30

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in MIDLAND County.

Well Details

Well Number: 4913 A
Max Depth: 9,000 ft
Drill Type: Vertical
County: MIDLAND
District: 8
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2005-07-13

Operator

Name: PIONEER NATURAL RES. USA, INC
Location: Y SPRING
P-5 Status: Active (filed 2025-08-01)
Cum Oil (all leases): 1,771,882,421 bbl
Cum Gas (all leases): 1,763,727,021 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 15,423